CN109985496A - A kind of method that ammonium strengthens the flue gas desulfurization of red mud ore pulp - Google Patents
A kind of method that ammonium strengthens the flue gas desulfurization of red mud ore pulp Download PDFInfo
- Publication number
- CN109985496A CN109985496A CN201910223321.0A CN201910223321A CN109985496A CN 109985496 A CN109985496 A CN 109985496A CN 201910223321 A CN201910223321 A CN 201910223321A CN 109985496 A CN109985496 A CN 109985496A
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- CN
- China
- Prior art keywords
- red mud
- flue gas
- ammonium
- desulfurization
- strengthens
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 87
- 239000003546 flue gas Substances 0.000 title claims abstract description 87
- 238000006477 desulfuration reaction Methods 0.000 title claims abstract description 81
- 230000023556 desulfurization Effects 0.000 title claims abstract description 62
- 238000000034 method Methods 0.000 title claims abstract description 48
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 title claims abstract description 22
- 239000002002 slurry Substances 0.000 claims abstract description 82
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 claims abstract description 76
- 239000007788 liquid Substances 0.000 claims abstract description 69
- 239000002689 soil Substances 0.000 claims abstract description 41
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims abstract description 40
- 239000007789 gas Substances 0.000 claims abstract description 32
- 238000006073 displacement reaction Methods 0.000 claims abstract description 31
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims abstract description 24
- 239000000779 smoke Substances 0.000 claims abstract description 21
- 229910021529 ammonia Inorganic materials 0.000 claims abstract description 20
- 229910052717 sulfur Inorganic materials 0.000 claims abstract description 19
- 239000011593 sulfur Substances 0.000 claims abstract description 19
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 claims abstract description 18
- 150000003863 ammonium salts Chemical class 0.000 claims abstract description 18
- 238000005273 aeration Methods 0.000 claims abstract description 14
- 239000006228 supernatant Substances 0.000 claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 10
- 235000019270 ammonium chloride Nutrition 0.000 claims abstract description 9
- 239000000920 calcium hydroxide Substances 0.000 claims abstract description 9
- 235000011116 calcium hydroxide Nutrition 0.000 claims abstract description 9
- 238000003756 stirring Methods 0.000 claims abstract description 9
- 239000003795 chemical substances by application Substances 0.000 claims description 25
- 210000003608 fece Anatomy 0.000 claims description 21
- 239000010871 livestock manure Substances 0.000 claims description 18
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 17
- 229910052760 oxygen Inorganic materials 0.000 claims description 17
- 239000001301 oxygen Substances 0.000 claims description 17
- 239000000843 powder Substances 0.000 claims description 17
- 239000002028 Biomass Substances 0.000 claims description 13
- 239000002351 wastewater Substances 0.000 claims description 13
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 claims description 9
- 239000000908 ammonium hydroxide Substances 0.000 claims description 9
- PAWQVTBBRAZDMG-UHFFFAOYSA-N 2-(3-bromo-2-fluorophenyl)acetic acid Chemical compound OC(=O)CC1=CC=CC(Br)=C1F PAWQVTBBRAZDMG-UHFFFAOYSA-N 0.000 claims description 8
- 239000004254 Ammonium phosphate Substances 0.000 claims description 8
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 8
- 239000002253 acid Substances 0.000 claims description 8
- ROOXNKNUYICQNP-UHFFFAOYSA-N ammonium persulfate Chemical compound [NH4+].[NH4+].[O-]S(=O)(=O)OOS([O-])(=O)=O ROOXNKNUYICQNP-UHFFFAOYSA-N 0.000 claims description 8
- 229910000148 ammonium phosphate Inorganic materials 0.000 claims description 8
- 235000019289 ammonium phosphates Nutrition 0.000 claims description 8
- 239000004202 carbamide Substances 0.000 claims description 8
- MNNHAPBLZZVQHP-UHFFFAOYSA-N diammonium hydrogen phosphate Chemical compound [NH4+].[NH4+].OP([O-])([O-])=O MNNHAPBLZZVQHP-UHFFFAOYSA-N 0.000 claims description 8
- 239000002994 raw material Substances 0.000 claims description 8
- 239000007787 solid Substances 0.000 claims description 8
- 238000000967 suction filtration Methods 0.000 claims description 8
- ATRRKUHOCOJYRX-UHFFFAOYSA-N Ammonium bicarbonate Chemical compound [NH4+].OC([O-])=O ATRRKUHOCOJYRX-UHFFFAOYSA-N 0.000 claims description 7
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 claims description 7
- 229910052921 ammonium sulfate Inorganic materials 0.000 claims description 7
- 235000011130 ammonium sulphate Nutrition 0.000 claims description 7
- 239000001099 ammonium carbonate Substances 0.000 claims description 6
- 239000005864 Sulphur Substances 0.000 claims description 5
- 241000287828 Gallus gallus Species 0.000 claims description 4
- 229910001870 ammonium persulfate Inorganic materials 0.000 claims description 4
- UYJXRRSPUVSSMN-UHFFFAOYSA-P ammonium sulfide Chemical compound [NH4+].[NH4+].[S-2] UYJXRRSPUVSSMN-UHFFFAOYSA-P 0.000 claims description 4
- 239000008235 industrial water Substances 0.000 claims description 4
- 150000003242 quaternary ammonium salts Chemical class 0.000 claims description 4
- 239000010902 straw Substances 0.000 claims description 4
- 229910000013 Ammonium bicarbonate Inorganic materials 0.000 claims description 3
- 241000272525 Anas platyrhynchos Species 0.000 claims description 3
- 235000012538 ammonium bicarbonate Nutrition 0.000 claims description 3
- 235000012501 ammonium carbonate Nutrition 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 2
- 238000005067 remediation Methods 0.000 claims 1
- 238000010521 absorption reaction Methods 0.000 abstract description 5
- 238000002156 mixing Methods 0.000 abstract description 2
- 230000003009 desulfurizing effect Effects 0.000 description 11
- 235000007769 Vetiveria zizanioides Nutrition 0.000 description 6
- 244000284012 Vetiveria zizanioides Species 0.000 description 6
- 230000035784 germination Effects 0.000 description 6
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 4
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 4
- 239000002699 waste material Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000006028 limestone Substances 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 2
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 239000006227 byproduct Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- TXKMVPPZCYKFAC-UHFFFAOYSA-N disulfur monoxide Inorganic materials O=S=S TXKMVPPZCYKFAC-UHFFFAOYSA-N 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- -1 ferrous metals Chemical class 0.000 description 2
- 239000011777 magnesium Substances 0.000 description 2
- 229910052749 magnesium Inorganic materials 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910017604 nitric acid Inorganic materials 0.000 description 2
- 150000007524 organic acids Chemical class 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 239000011833 salt mixture Substances 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- XTQHKBHJIVJGKJ-UHFFFAOYSA-N sulfur monoxide Chemical compound S=O XTQHKBHJIVJGKJ-UHFFFAOYSA-N 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 241000790917 Dioxys <bee> Species 0.000 description 1
- 102000004190 Enzymes Human genes 0.000 description 1
- 108090000790 Enzymes Proteins 0.000 description 1
- 235000019738 Limestone Nutrition 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 238000009621 Solvay process Methods 0.000 description 1
- 239000002154 agricultural waste Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 239000001164 aluminium sulphate Substances 0.000 description 1
- 235000011128 aluminium sulphate Nutrition 0.000 description 1
- 239000010828 animal waste Substances 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 150000001720 carbohydrates Chemical class 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- BUACSMWVFUNQET-UHFFFAOYSA-H dialuminum;trisulfate;hydrate Chemical compound O.[Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O BUACSMWVFUNQET-UHFFFAOYSA-H 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 210000004185 liver Anatomy 0.000 description 1
- 230000004060 metabolic process Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 230000007096 poisonous effect Effects 0.000 description 1
- 238000007781 pre-processing Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000009418 renovation Methods 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
- C05F3/00—Fertilisers from human or animal excrements, e.g. manure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/48—Sulfur compounds
- B01D53/50—Sulfur oxides
- B01D53/501—Sulfur oxides by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound
- B01D53/502—Sulfur oxides by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound characterised by a specific solution or suspension
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C21/00—Methods of fertilising, sowing or planting
- A01C21/002—Apparatus for sowing fertiliser; Fertiliser drill
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C23/00—Distributing devices specially adapted for liquid manure or other fertilising liquid, including ammonia, e.g. transport tanks or sprinkling wagons
- A01C23/001—Sludge spreaders, e.g. liquid manure spreaders
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C23/00—Distributing devices specially adapted for liquid manure or other fertilising liquid, including ammonia, e.g. transport tanks or sprinkling wagons
- A01C23/008—Tanks, chassis or related parts
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- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/80—Semi-solid phase processes, i.e. by using slurries
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05C—NITROGENOUS FERTILISERS
- C05C9/00—Fertilisers containing urea or urea compounds
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
- C05F5/00—Fertilisers from distillery wastes, molasses, vinasses, sugar plant or similar wastes or residues, e.g. from waste originating from industrial processing of raw material of agricultural origin or derived products thereof
- C05F5/002—Solid waste from mechanical processing of material, e.g. seed coats, olive pits, almond shells, fruit residue, rice hulls
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G1/00—Mixtures of fertilisers belonging individually to different subclasses of C05
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
- C05G3/80—Soil conditioners
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K17/00—Soil-conditioning materials or soil-stabilising materials
- C09K17/02—Soil-conditioning materials or soil-stabilising materials containing inorganic compounds only
- C09K17/08—Aluminium compounds, e.g. aluminium hydroxide
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- B01D2251/2062—Ammonia
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B01D2251/404—Alkaline earth metal or magnesium compounds of calcium
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B01D2252/10—Inorganic absorbents
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B01D2258/02—Other waste gases
- B01D2258/0283—Flue gases
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/40—Bio-organic fraction processing; Production of fertilisers from the organic fraction of waste or refuse
Abstract
The invention discloses a kind of methods that ammonium strengthens the flue gas desulfurization of red mud ore pulp, are specially crushed red mud, are sieved, and carry out pulp to red mud, then carry out Air Exposure, and ammonium salt and/or ammonia is added, and red mud pretreatment slurries and red mud pretreatment clear liquid are obtained after natural subsidence；Ammonium salt and/or ammonia are added in slurries, adds water, carries out the pre- desulfurization of flue gas after mixing, treated, and flue gas continues through red mud pretreatment clear liquid progress flue gas deep desulfuration, the flue gas direct emission after desulfurization；Treated red mud pretreatment slurries and red mud pretreatment clear liquid enter in the displacement pool of lower section, are subsequently added into milk of lime, stir, the dense red mud slurry of lower layer are carried out soil after natural subsidence, supernatant liquor flows back into red mud aeration tank.The present invention strengthens red mud dealkalization by ammonium chloride, and is handled with it sulfur-containing smoke gas, reduces its pH and can have the function that remove sulfur dioxide in flue gas to the absorption of sulfur dioxide, treated, and red mud slurry is rich in N convenient for soil.
Description
Technical field
The invention belongs to the industrial smoke Pollutant Control Technology fields of field of environment protection, and in particular to a kind of ammonium reinforcing
The method of red mud ore pulp flue gas desulfurization.
Background technique
Sulfur dioxide is one of major pollutants in atmosphere, is the important symbol measuring atmosphere and whether being polluted.The world
On have many cities that sulfur dioxide harm occurred matters of aggravation, so that many people is poisoned or dead.As sulfur dioxide can be inhaled
It takes in into blood, toxic side effect is generated to whole body, the vigor of its energy destructive enzyme, to significantly influence carbohydrate and albumen
The metabolism of matter has certain damage to liver.In China, coal-burning boiler and cellar that the industries such as electric power, chemical industry and smelting use
It is big that fire grate puts exhaust gas volumn, and contains a large amount of sulfur dioxide in flue gas.Therefore, industrial coal and the flue gas of generation must be through handling
It could be discharged after up to standard.
Red mud is also known as red soil, is the pollution waste residue that aluminium industry extracts aluminium oxide discharge, average 1 ton of oxygen of every production
Change aluminium, incidentally generates 1.0 ~ 2.0 tons of red muds.China is used as the fourth-largest alumina producing state, the world, and the red mud discharged every year is up to
Millions of tons.The pH value of red mud is very high, and the pH value of leachate is 12.1 ~ 13.0, content of fluoride be 11.5mg/L ~
26.7mg/L.Standard is controlled by GB 5058-85 non-ferrous metals industry solid waste pollution, because its pH value is greater than 12.5, fluoride
Content is greater than 50 mg/L, and integrated wastewater discharge is divided into overstandard waste water, therefore red mud belongs to harmful waste residue.Therefore, red mud dealkalization
And its rationalization processing is of crucial importance.
Currently, processing sulfur dioxide method mainly have lime-limestone-based process, sodium alkali, ammonia-soda process, Absorption by Sea Water method,
Arbiso process, basic aluminium sulphate method etc..Industrial is commonly lime-limestone-based process.Although lime stone is cheap, enter
It needs to grind powdering before desulphurization system and slurries is made, and to granularity requirements height；Liquid-gas ratio is higher, so that it is larger to make to consume energy；
Byproduct be difficult it is up to standard, to cause a large amount of exhaust gas；Maximum problem is secondary pollution caused by the desulfurized gypsum of by-product.By
This, develops and carries out flue gas desulfurization with red mud ore pulp.Had at present it is more about the report for carrying out flue gas desulfurization with red mud,
But there is its limitation.Chinese patent CN201210526260.3, which is disclosed, a kind of carries out boiler flue gas desulfurization using red mud slurry
Red mud slurry is transported in desulfurizing tower by method by desulfuration recycle pump, with from the flue gas that this lower part of desulfurizing tower is passed through into
Row desulphurization reaction.Although the invention method handles sulfur-containing smoke gas using red mud, easy to operate, at low cost, reaches and controlled with useless
Useless purpose.But since its pH of red mud percolate is up to 12.1 ~ 13.0, the method does not strengthen red mud dealkalization, therefore not
Make full use of the characteristic of red mud；And sulfur-containing smoke gas only carries out simple flue gas desulfurization processing, does not carry out advanced treating,
Desulfurization effect is not very significant.Likewise, Chinese patent CN201610463539 .X discloses a kind of cigarette of magnesium fortified red mud
Magnesium is used to strengthen red mud dealkalization by gas process for deep desulphurization, and it is pre- to carry out flue gas with its red mud slurry and red mud supernatant respectively
Desulfurization and deep desulfuration.But its dealkalize red mud after processing is not further processed, and allows to soil.Therefore,
For the demand of red mud waste resource recovery and desulfurizing industrial fume, a kind of reinforced red mud method flue gas desulfurization technique pair of function is developed
Realize that the resource utilization of the effective desulfurization of industrial smoke and red mud is very necessary.
Summary of the invention
The purpose of the invention is to overcome the problems of the above-mentioned prior art and what is provided a kind of can effectively realize work
A kind of method of ammonium of the effective desulfurization of industry flue gas and red mud resource utilization reinforcing red mud ore pulp flue gas desulfurization.
The technical solution of the method for the present invention is:
A kind of method that ammonium strengthens the flue gas desulfurization of red mud ore pulp, comprising the following steps:
1) red mud is crushed, crosses 50 ~ 200 meshes, pulp is carried out to red mud according to the liquid-solid ratio of 25-30:1 using pulp liquid, is connect
Be passed through sulfur dioxide and oxygen Air Exposure carried out in red mud aeration tank to red mud pulp liquid；Ammonium salt and/or ammonia, warp is added
Red mud pretreatment slurries and red mud pretreatment clear liquid are obtained after natural subsidence, and as the pre- desulfurization slurry of sulfur-containing smoke gas and
Deep desulfuration clear liquid；
2) ammonium salt and/or ammonia is added in red mud pretreatment slurries, adds water, be uniformly mixed, then by sulfur-containing smoke gas de-
First counter current contacting carries out the pre- desulfurization of flue gas in sulphur tower, and treated, and flue gas continues through red mud pretreatment clear liquid progress flue gas depth
Desulfurization process, the flue gas direct emission after desulfurization；
3) enter in the displacement pool of lower section by step (2) treated red mud pretreatment slurries and red mud pretreatment clear liquid, connect
Milk of lime is added in displacement pool, stir, lower layer's dense red mud slurry comprehensive utilization be subjected to soil after natural subsidence, on
Layer clear liquid flows back into red mud aeration tank.
Further, pulp liquid as described in step (1) is industrial water, in acid waste water, displacement pool supernatant liquor
It is any one or more.
Further, the acid waste water is in sulfuric acid, phosphoric acid, nitric acid, hydrochloric acid, organic acid containing low concentration etc.
Any one or more waste water.
Further, the volume ratio of sulfur dioxide and oxygen as described in step (1) is 1:1 ~ 6:1.
Further, the ammonium salt is ammonium chloride, ammonium sulfate, ammonium nitrate, ammonium carbonate, ammonium phosphate, ammonium sulfide, bicarbonate
Ammonium, ammonium persulfate, quaternary ammonium salt are any one or more of.
Further, the ammonia is ammonia or ammonium hydroxide.
Further, the additional amount of ammonium salt and/or ammonia as described in step (1) is the 0.5 ~ 5% of red mud amount.
Further, the additional amount of ammonium salt described in step (2) and/or ammonia be red mud pre-process slurries amount 0.5 ~
5%。
Further, the pretreatment slurries of red mud described in step (1) and red mud pretreatment clear liquid control its pH > 8.5.
Further, it is 6 ~ 7 that the dense red mud slurry of displacement pool lower layer described in step (3), which controls its pH,.
Further, carry out soilization described in step (3) is specially and carries out the dense red mud slurry of lower layer with suction filtration machine
It filters, soil-repairing agent is added into red mud filter residue, be mixed object and uniformly spread and be sprinkled upon on the normal soil of physicochemical property, and general
It is mixed with native soil.
Further, the soil-repairing agent includes the raw material of following parts by weight: it is biomass powder 10-25 parts useless, have
1-5 parts of machine muck, 0.5-1.5 parts of urea.
Further, the useless biomass powder is in agricultural crop straw powder, biogas biogas residue, biomass sawdust etc.
One or more of mixtures.
Further, the organic manure is one of pig manure, chicken manure, cow dung, dog excrement, horsehit, duck excrement etc. or more
Kind.
Further, the soil-repairing agent and red mud filter residue mass ratio are 1:5-10.
Compared with prior art, the present invention has the advantage that
1, the present invention absorbs the sulfur dioxide in flue gas using red mud, can be effectively reduced the generation of poisonous and harmful substance, energy consumption
It is lower.
2, red mud is divided into pretreatment and advanced treatment to the desulfurization of flue gas by the present invention, can effectively remove the dioxy in flue gas
Change sulphur, improves removal efficiency, pre- desulfurization zone can efficiently use the alkaline constituents such as combination sodium, calcium in red mud and sufficiently remove at the same time
Or conversion, the sulfur dioxide in flue gas can not only be removed, and further dealkalize effect can be carried out to red mud.
3, the red mud slurry after absorbing flue gas increases N element after displacement pool is handled, and pH reaches normal soil
PH, make it treated red mud can soil, reduce pollution of the red mud to ambient enviroment.
4, plant can be increased using the biomass waste materials such as agricultural crops stalk and animal wastes production soil-repairing agent
The nutriment and element needed is grown, so that red mud filter residue soil is effectively utilized agricultural wastes, realizes and is controlled with useless
It is useless.
Detailed description of the invention
Fig. 1 is process flow chart of the invention.
Specific embodiment
Below with reference to embodiment and attached drawing, the present invention is further illustrated, but is not subject in any way to the present invention
Limitation, based on present invention teach that it is made it is any transform or replace, all belong to the scope of protection of the present invention.
Embodiment 1
As shown in Figure 1, a kind of ammonium strengthens the method for red mud ore pulp flue gas desulfurization, specifically includes the following steps:
1) red mud is crushed, crosses 50 meshes, pulp is carried out to red mud according to the liquid-solid ratio of 25:1 using pulp liquid, is then passed through two
Sulfur oxide and oxygen carry out Air Exposure to red mud pulp liquid, and the volume ratio of the sulfur dioxide and oxygen is 1:1；Sulphur is added
Sour ammonium, the additional amount of the ammonium sulfate are the 0.5% of red mud amount, and red mud pretreatment slurries and red mud are obtained after natural subsidence
Clear liquid is pre-processed, and as the pre- desulfurization slurry and deep desulfuration clear liquid of sulfur-containing smoke gas；The pulp liquid is sulfuric acid acid
Property waste water；The red mud pretreatment slurries and red mud pretreatment clear liquid control its pH > 8.5.
2) ammonium sulfate is added in red mud pretreatment slurries, the additional amount of the ammonium sulfate is that red mud pre-processes slurries amount
0.5%, add water, be uniformly mixed, then first counter current contacting carries out the pre- desulfurization of flue gas, place in desulfurizing tower by sulfur-containing smoke gas
Flue gas after reason continues through red mud pretreatment clear liquid and carries out the processing of flue gas deep desulfuration, and the flue gas direct emission after desulfurization is
It can；
3) enter in the displacement pool of lower section by step (2) treated red mud pretreatment slurries and red mud pretreatment clear liquid, connect
Be added milk of lime in displacement pool, stirring to pH is in alkalescent, comprehensively utilizes the dense red mud slurry of lower layer after natural subsidence
Soil is carried out, it is 6 ~ 7 that the dense red mud slurry of displacement pool lower layer, which controls its pH, and supernatant liquor flows back into red mud aeration tank.
4) the dense red mud slurry of lower layer is filtered with suction filtration machine, soil-repairing agent is added into red mud filter residue, it is described
Soil-repairing agent and red mud filter residue mass ratio are 1:5；It is mixed object and uniformly spreads and be sprinkled upon on the normal soil of physicochemical property, and will
It is mixed with native soil.The soil-repairing agent includes the raw material of following parts by weight: useless 15 parts of biomass powder, organic manure
3 parts, 1 part of urea.
It is 4000 mg/m that initial concentration containing sulfur dioxide is passed through into desulfurizing tower3Simulated flue gas, flue gas flow control exists
2.5 m3/ h, flue-gas temperature are about 100 DEG C, and pre- desulfurization zone liquid-gas ratio is 7 L/m3, deep desulfuration area liquid-gas ratio is 9 L/m3。
Pass through the on-line monitoring and record to sulfur dioxide concentration in desulfidation tail gas, the results showed that after absorption in simulated flue gas
The concentration of sulfur dioxide is maintained at 110 mg/m3Left and right, the removal rate for calculating sulfur dioxide accordingly is 97.25%.
Germination percentage is 70% after planting vetiver 10 days on the red mud soil after repaired.
Embodiment 2
1) red mud is crushed, is sieved with 100 mesh sieve, pulp is carried out to red mud according to the liquid-solid ratio of 28:1 using pulp liquid, is then passed through
Sulfur dioxide and oxygen carry out Air Exposure to red mud pulp liquid, and the volume ratio of the sulfur dioxide and oxygen is 3:1；It is added
Ammonium nitrate, the additional amount of the ammonium nitrate are the 1% of red mud amount, and red mud pretreatment slurries and red mud are obtained after natural subsidence
Clear liquid is pre-processed, and as the pre- desulfurization slurry and deep desulfuration clear liquid of sulfur-containing smoke gas；The pulp liquid is industrial
Water；The red mud pretreatment slurries and red mud pretreatment clear liquid control its pH > 8.5.
2) ammonium nitrate is added in red mud pretreatment slurries, the additional amount of the ammonium nitrate is that red mud pre-processes slurries amount
1%, add water, be uniformly mixed, then by remaining sulfur-containing smoke gas, first counter current contacting carries out the pre- desulfurization of flue gas in desulfurizing tower,
Treated, and flue gas continues through red mud pretreatment clear liquid progress flue gas deep desulfuration processing, and the flue gas direct emission after desulfurization is
It can；
3) enter in the displacement pool of lower section by step (2) treated red mud pretreatment slurries and red mud pretreatment clear liquid, connect
Be added milk of lime in displacement pool, stirring to pH is in alkalescent, comprehensively utilizes the dense red mud slurry of lower layer after natural subsidence
Soil is carried out, it is 6 ~ 7 that the dense red mud slurry of displacement pool lower layer, which controls its pH, and supernatant liquor flows back into red mud aeration tank.
4) the dense red mud slurry of lower layer is filtered with suction filtration machine, soil-repairing agent is added into red mud filter residue, it is described
Soil-repairing agent and red mud filter residue mass ratio are 1:10, are mixed object and uniformly spread and are sprinkled upon on the normal soil of physicochemical property, and
It is mixed with native soil.The soil-repairing agent includes the raw material of following parts by weight: useless 15 parts of biomass powder, organic excrement
3 parts, 1 part of urea of fertilizer.
It is 4000 mg/m that initial concentration containing sulfur dioxide is passed through into desulfurizing tower3Simulated flue gas, flue gas flow control exists
2.5 m3/ h, flue-gas temperature are about 80 DEG C, and pre- desulfurization zone liquid-gas ratio is 8 L/m3, deep desulfuration area liquid-gas ratio is 10 L/m3。
Pass through the on-line monitoring and record to sulfur dioxide concentration in desulfidation tail gas, the results showed that after absorption in simulated flue gas
The concentration of sulfur dioxide is maintained at 90 mg/m3Left and right, the removal rate for calculating sulfur dioxide accordingly is 97.75%.
Germination percentage is 75% after planting vetiver 10 days on the red mud soil after repaired.
Embodiment 3
1) red mud is crushed, crosses 200 meshes, pulp is carried out to red mud according to the liquid-solid ratio of 30:1 using pulp liquid, is then passed through
Sulfur dioxide and oxygen carry out Air Exposure to red mud pulp liquid, and the volume ratio of the sulfur dioxide and oxygen is 6:1；It is added
Ammonium phosphate, the additional amount of the ammonium phosphate are the 1.5% of red mud amount, and red mud pretreatment slurries and red are obtained after natural subsidence
Mud pre-processes clear liquid, and as the pre- desulfurization slurry and deep desulfuration clear liquid of sulfur-containing smoke gas；The pulp liquid is industry
With water and displacement pool supernatant liquor.The red mud pretreatment slurries and red mud pretreatment clear liquid control its pH > 8.5.
2) ammonium phosphate is added in red mud pretreatment slurries, the additional amount of the ammonium phosphate is that red mud pre-processes slurries amount
1.5%, add water, be uniformly mixed, then to carry out flue gas pre- de- for first counter current contacting in desulfurizing tower by remaining sulfur-containing smoke gas
Sulphur, treated, and flue gas continues through red mud pretreatment clear liquid progress flue gas deep desulfuration processing, and the flue gas after desulfurization is directly arranged
It puts；
3) enter in the displacement pool of lower section by step (2) treated red mud pretreatment slurries and red mud pretreatment clear liquid, connect
Be added milk of lime in displacement pool, stirring to pH is in alkalescent, comprehensively utilizes the dense red mud slurry of lower layer after natural subsidence
Soil is carried out, it is 6 ~ 7 that the dense red mud slurry of displacement pool lower layer, which controls its pH, and supernatant liquor flows back into red mud aeration tank work
For the use of pulp liquid；
4) the dense red mud slurry of lower layer is filtered with suction filtration machine, soil-repairing agent, the soil is added into red mud filter residue
Renovation agent and red mud filter residue mass ratio are 1:8, are mixed object and uniformly spread and are sprinkled upon on the normal soil of physicochemical property, and by its with
Native soil mixing.The soil-repairing agent includes the raw material of following parts by weight: useless 15 parts of biomass powder, and 3 parts of organic manure,
1 part of urea.
It is 4000 mg/m that initial concentration containing sulfur dioxide is passed through into desulfurizing tower3Simulated flue gas, flue gas flow control exists
2.5 m3/ h, flue-gas temperature are about 80 DEG C, and pre- desulfurization zone liquid-gas ratio is 7 L/m3, deep desulfuration area liquid-gas ratio is 9 L/m3。
Pass through the on-line monitoring and record to sulfur dioxide concentration in desulfidation tail gas, the results showed that after absorption in simulated flue gas
The concentration of sulfur dioxide is maintained at 170 mg/m3Left and right, the removal rate for calculating sulfur dioxide accordingly is 95.75%.
Germination percentage is 68% after planting vetiver 10 days on the red mud soil after repaired.
Embodiment 4
A kind of method that ammonium strengthens the flue gas desulfurization of red mud ore pulp, comprising the following steps:
1) red mud is crushed, crosses 80 meshes, pulp is carried out to red mud according to the liquid-solid ratio of 26:1 using pulp liquid, is then passed through two
Sulfur oxide and oxygen carry out Air Exposure, the volume of the sulfur dioxide and oxygen to red mud pulp liquid in red mud aeration tank
Than for 2:1；Ammonium chloride is added, the additional amount of the ammonium chloride is the 2% of red mud amount, obtains red mud after natural subsidence and locates in advance
It manages slurries and red mud pre-processes clear liquid, and as the pre- desulfurization slurry and deep desulfuration clear liquid of sulfur-containing smoke gas；The slurry
Change liquid is industrial water, acid waste water and displacement pool supernatant liquor.The acid waste water is the nitric acid waste water containing low concentration.
The red mud pretreatment slurries and red mud pretreatment clear liquid control its pH > 8.5.
2) ammonium chloride is added in red mud pretreatment slurries, the additional amount of the ammonium chloride is that red mud pre-processes slurries
2%, water is added, is uniformly mixed, then first counter current contacting carries out the pre- desulfurization of flue gas, place in desulfurizing tower by remaining sulfur-containing smoke gas
Flue gas after reason continues through red mud pretreatment clear liquid and carries out the processing of flue gas deep desulfuration, and the flue gas direct emission after desulfurization is
It can；
3) enter in the displacement pool of lower section by step (2) treated red mud pretreatment slurries and red mud pretreatment clear liquid, connect
Milk of lime is added in displacement pool, stir, lower layer's dense red mud slurry comprehensive utilization be subjected to soil, institute after natural subsidence
It is 6 that the dense red mud slurry of displacement pool lower layer stated, which controls its pH,；Supernatant liquor flows back into red mud aeration tank.
The carry out soilization is specially to filter the dense red mud slurry of lower layer with suction filtration machine, is added into red mud filter residue
Enter soil-repairing agent, the soil-repairing agent and red mud filter residue mass ratio are 1:6, are mixed object and uniformly spread and are sprinkled upon physics and chemistry
On the normal soil of matter, and it is mixed with native soil.The soil-repairing agent includes the raw material of following parts by weight: useless biology
10 parts of matter powder, 1 part of organic manure, 0.5 part of urea.The useless biomass powder is agricultural crop straw powder.Described has
Machine muck is pig manure.
By measurement, the present embodiment is 96.15% to the removal rate of sulfur dioxide in flue gas；Red mud soil after repaired
Germination percentage is 77% after planting vetiver 10 days on earth.
Embodiment 5
A kind of method that ammonium strengthens the flue gas desulfurization of red mud ore pulp, comprising the following steps:
1) red mud is crushed, crosses 120 meshes, pulp is carried out to red mud according to the liquid-solid ratio of 27:1 using pulp liquid, is then passed through
Sulfur dioxide and oxygen carry out Air Exposure, the body of the sulfur dioxide and oxygen to red mud pulp liquid in red mud aeration tank
Product is than being 3:1；Be added ammonium salt and ammonia, the ammonium salt be ammonium chloride, ammonium sulfate, ammonium nitrate, ammonium carbonate, ammonium phosphate, ammonium sulfide,
Ammonium hydrogen carbonate, ammonium persulfate, quaternary ammonium salt mixture, the ammonia be ammonium hydroxide；The additional amount of the ammonium salt and ammonia is red mud
The 2.5% of amount obtains red mud pretreatment slurries and red mud pretreatment clear liquid after natural subsidence, and as sulfur-containing smoke gas
Pre- desulfurization slurry and deep desulfuration clear liquid；The pulp liquid is any one of acid waste water, displacement pool supernatant liquor or more
Kind.The acid waste water is the organic acid wastewater containing low concentration.The red mud pretreatment slurries and red mud pre-process clear liquid
Control its pH > 8.8.
2) ammonium salt and ammonia are added in red mud pretreatment slurries, the ammonium salt is ammonium chloride, ammonium sulfate, ammonium nitrate, carbon
Sour ammonium, ammonium phosphate, ammonium sulfide, ammonium hydrogen carbonate, ammonium persulfate, quaternary ammonium salt mixture, the ammonia be ammonium hydroxide；The ammonium salt
Additional amount with ammonia is that red mud pre-processes the 2.5% of slurries, adds water, is uniformly mixed, then by remaining sulfur-containing smoke gas in desulfurization
First counter current contacting carries out the pre- desulfurization of flue gas in tower, and treated, and flue gas continues through that red mud pretreatment clear liquid carries out flue gas depth is de-
Sulphuring treatment, the flue gas direct emission after desulfurization；
3) enter in the displacement pool of lower section by step (2) treated red mud pretreatment slurries and red mud pretreatment clear liquid, connect
Milk of lime is added in displacement pool, stir, lower layer's dense red mud slurry comprehensive utilization be subjected to soil, institute after natural subsidence
It is 7 that the dense red mud slurry of displacement pool lower layer stated, which controls its pH,；Supernatant liquor flows back into red mud aeration tank.
The carry out soilization is specially to filter the dense red mud slurry of lower layer with suction filtration machine, is added into red mud filter residue
Enter soil-repairing agent, the soil-repairing agent and red mud filter residue mass ratio are 1:7, are mixed object and uniformly spread and are sprinkled upon physics and chemistry
On the normal soil of matter, and it is mixed with native soil.The soil-repairing agent includes the raw material of following parts by weight: useless biology
25 parts of matter powder, 5 parts of organic manure, 1.5 parts of urea.The useless biomass powder is biogas biogas residue.The organic manure
For chicken manure.
By measurement, the present embodiment is 96.88% to the removal rate of sulfur dioxide in flue gas；Red mud soil after repaired
Germination percentage is 72% after planting vetiver 10 days on earth.
Embodiment 6
A kind of method that ammonium strengthens the flue gas desulfurization of red mud ore pulp, comprising the following steps:
1) red mud is crushed, crosses 180 meshes, pulp is carried out to red mud according to the liquid-solid ratio of 29:1 using pulp liquid, is then passed through
Sulfur dioxide and oxygen carry out Air Exposure, the body of the sulfur dioxide and oxygen to red mud pulp liquid in red mud aeration tank
Product is than being 4:1；Ammonium hydroxide is added, the additional amount of the ammonium hydroxide is the 3% of red mud amount, and red mud pretreatment is obtained after natural subsidence
Slurries and red mud pre-process clear liquid, and as the pre- desulfurization slurry and deep desulfuration clear liquid of sulfur-containing smoke gas；The red mud is pre-
Processing slurries and red mud pretreatment clear liquid control its pH > 9.
2) ammonium hydroxide being added in red mud pretreatment slurries, ammonium hydroxide is added, the additional amount of the ammonium hydroxide is the 3% of red mud amount,
Water is added, is uniformly mixed, then first counter current contacting carries out the pre- desulfurization of flue gas in desulfurizing tower by remaining sulfur-containing smoke gas, after processing
Flue gas continue through red mud pretreatment clear liquid carry out the processing of flue gas deep desulfuration, the flue gas direct emission after desulfurization；
3) enter in the displacement pool of lower section by step (2) treated red mud pretreatment slurries and red mud pretreatment clear liquid, connect
Milk of lime is added in displacement pool, stir, lower layer's dense red mud slurry comprehensive utilization be subjected to soil, institute after natural subsidence
It is 6.5 that the dense red mud slurry of displacement pool lower layer stated, which controls its pH,；Supernatant liquor flows back into red mud aeration tank.
The carry out soilization is specially to filter the dense red mud slurry of lower layer with suction filtration machine, is added into red mud filter residue
Enter soil-repairing agent, the soil-repairing agent and red mud filter residue mass ratio are 1:9, are mixed object and uniformly spread and are sprinkled upon physics and chemistry
On the normal soil of matter, and it is mixed with native soil.The soil-repairing agent includes the raw material of following parts by weight: useless biology
20 parts of matter powder, 3 parts of organic manure, 1 part of urea.The useless biomass powder is agricultural crop straw powder, biogas biogas residue, life
Substance sawdust.The organic manure is pig manure, chicken manure, cow dung, dog excrement, horsehit, duck excrement.
By measurement, the present embodiment is 98.75% to the removal rate of sulfur dioxide in flue gas；Red mud soil after repaired
Germination percentage is 80% after planting vetiver 10 days on earth.
Claims (10)
1. a kind of method that ammonium strengthens the flue gas desulfurization of red mud ore pulp, it is characterised in that the following steps are included:
1) red mud is crushed, crosses 50 ~ 200 meshes, pulp is carried out to red mud according to the liquid-solid ratio of 25-30:1 using pulp liquid, is connect
Be passed through sulfur dioxide and oxygen Air Exposure carried out in red mud aeration tank to red mud pulp liquid, ammonium salt and/or ammonia, warp is added
Red mud pretreatment slurries and red mud pretreatment clear liquid are obtained after natural subsidence, and as the pre- desulfurization slurry of sulfur-containing smoke gas and
Deep desulfuration clear liquid；
2) ammonium salt and/or ammonia is added in red mud pretreatment slurries, adds water, be uniformly mixed, then by sulfur-containing smoke gas de-
First counter current contacting carries out the pre- desulfurization of flue gas in sulphur tower, and treated, and flue gas continues through red mud pretreatment clear liquid progress flue gas depth
Desulfurization process, the flue gas direct emission after desulfurization；
3) enter in the displacement pool of lower section by step (2) treated red mud pretreatment slurries and red mud pretreatment clear liquid, connect
Milk of lime is added in displacement pool, stir, lower layer's dense red mud slurry comprehensive utilization be subjected to soil after natural subsidence, on
Layer clear liquid flows back into red mud aeration tank.
2. the method that ammonium according to claim 1 strengthens the flue gas desulfurization of red mud ore pulp, it is characterised in that described in step (1)
Pulp liquid be that industrial water, acid waste water, displacement pool supernatant liquor are any one or more of.
3. the method that ammonium according to claim 1 strengthens the flue gas desulfurization of red mud ore pulp, it is characterised in that described in step (1)
Sulfur dioxide and oxygen volume ratio be 1:1 ~ 6:1.
4. the method that ammonium according to claim 1 strengthens the flue gas desulfurization of red mud ore pulp, it is characterised in that the ammonium salt is
Any one of ammonium chloride, ammonium sulfate, ammonium nitrate, ammonium carbonate, ammonium phosphate, ammonium sulfide, ammonium hydrogen carbonate, ammonium persulfate, quaternary ammonium salt
Or it is a variety of；The ammonia is ammonia or ammonium hydroxide.
5. the method that ammonium according to claim 1 strengthens the flue gas desulfurization of red mud ore pulp, it is characterised in that described in step (1)
Ammonium salt and/or ammonia additional amount be red mud amount 0.5 ~ 5%；The additional amount of ammonium salt described in step (2) and/or ammonia is red
Mud pre-processes the 0.5 ~ 5% of slurries amount.
6. the method that ammonium according to claim 1 strengthens the flue gas desulfurization of red mud ore pulp, it is characterised in that described in step (1)
Red mud pretreatment slurries and red mud pretreatment clear liquid control its pH > 8.5.
7. the method that ammonium according to claim 1 strengthens the flue gas desulfurization of red mud ore pulp, it is characterised in that described in step (3)
The dense red mud slurry of displacement pool lower layer control its pH be 6 ~ 7.
8. the method that ammonium according to claim 1 strengthens the flue gas desulfurization of red mud ore pulp, it is characterised in that described in step (3)
Carry out soilization be specially the dense red mud slurry of lower layer is filtered with suction filtration machine, soil remediation is added into red mud filter residue
Agent, is mixed object and uniformly spreads and be sprinkled upon on the normal soil of physicochemical property, and it is mixed with native soil.
9. the method that ammonium according to claim 8 strengthens the flue gas desulfurization of red mud ore pulp, it is characterised in that the soil is repaired
Multiple agent includes the raw material of following parts by weight: biomass powder 10-25 parts, 1-5 parts of organic manure, 0.5-1.5 parts of urea useless；It is described
Useless biomass powder be one or more of agricultural crop straw powder, biogas biogas residue, biomass sawdust mixture, it is described
Organic manure is one of pig manure, chicken manure, cow dung, dog excrement, horsehit, duck excrement or a variety of.
10. the method that ammonium according to claim 8 strengthens the flue gas desulfurization of red mud ore pulp, it is characterised in that the soil is repaired
Multiple agent and red mud filter residue mass ratio are 1:5-10.
Priority Applications (2)
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111807736A (en) * | 2020-07-13 | 2020-10-23 | 湖南金隆再生金属有限公司 | Desulfurization calcined gypsum processing technology |
| CN112675692A (en) * | 2020-12-29 | 2021-04-20 | 西安交通大学 | Red mud harmless treatment system based on circulating fluidized bed boiler and working method thereof |
| CN115415292A (en) * | 2022-09-29 | 2022-12-02 | 武汉理工大学 | Red mud wet dealkalization method and treatment system |
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| CN112619392A (en) * | 2020-11-17 | 2021-04-09 | 天津浩创节能环保设备有限公司 | Dust removal, desulfurization and denitrification process for boiler flue gas |
| CN112387106A (en) * | 2020-11-27 | 2021-02-23 | 昆明理工大学 | Method for improving desulfurization efficiency of electrolytic manganese ore/slag slurry |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4173454A (en) * | 1977-07-18 | 1979-11-06 | Heins Sidney M | Method for removal of sulfur from coal in stoker furnaces |
| US4222992A (en) * | 1978-02-27 | 1980-09-16 | Sumitomo Aluminium Smelting Company, Limited | Process for the removal of sulfur oxides from exhaust gases using slurry of red mud containing calcium ion |
| CN101480576A (en) * | 2008-11-17 | 2009-07-15 | 北京博奇电力科技有限公司 | Desulfuration method with jet bubble process using red mud as absorbing agent |
| CN103028324A (en) * | 2012-12-10 | 2013-04-10 | 安阳化学工业集团有限责任公司 | Method for desulfurization of flue gas in boiler by using red mud |
| CN105903333A (en) * | 2016-06-23 | 2016-08-31 | 上海交通大学 | Flue gas deep desulfurization method of magnesium strengthened red mud |
| CN108516707A (en) * | 2018-01-30 | 2018-09-11 | 武汉理工大学 | A kind of cationic cure agent and red-mud coal ash cementitious material |
| CN108585005A (en) * | 2018-06-06 | 2018-09-28 | 山西森泽能源科技集团有限公司 | A kind of dealkalization method of Bayer process red mud |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19707339A1 (en) * | 1997-02-14 | 1998-08-20 | Ver Energiewerke Ag | Treating red sludge from mining operations, by mixing with chalk and water |
| CN105413445A (en) * | 2016-01-12 | 2016-03-23 | 河北建设勘察研究院有限公司 | Formula of red mud slurry for desulfuration and preparation method of red mud slurry |
| CN106882932B (en) * | 2017-02-07 | 2019-06-04 | 郑州大学 | A kind of method of comprehensive utilization of red mud |
| CN112295400B (en) * | 2020-10-29 | 2022-11-01 | 中国铝业股份有限公司 | Preparation method of activated red mud composite calcium-based dry desulfurizing agent and desulfurizing agent |
-
2019
- 2019-03-22 CN CN201910223321.0A patent/CN109985496B/en active Active
-
2020
- 2020-03-17 US US16/821,043 patent/US11535572B2/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4173454A (en) * | 1977-07-18 | 1979-11-06 | Heins Sidney M | Method for removal of sulfur from coal in stoker furnaces |
| US4222992A (en) * | 1978-02-27 | 1980-09-16 | Sumitomo Aluminium Smelting Company, Limited | Process for the removal of sulfur oxides from exhaust gases using slurry of red mud containing calcium ion |
| CN101480576A (en) * | 2008-11-17 | 2009-07-15 | 北京博奇电力科技有限公司 | Desulfuration method with jet bubble process using red mud as absorbing agent |
| CN103028324A (en) * | 2012-12-10 | 2013-04-10 | 安阳化学工业集团有限责任公司 | Method for desulfurization of flue gas in boiler by using red mud |
| CN105903333A (en) * | 2016-06-23 | 2016-08-31 | 上海交通大学 | Flue gas deep desulfurization method of magnesium strengthened red mud |
| CN108516707A (en) * | 2018-01-30 | 2018-09-11 | 武汉理工大学 | A kind of cationic cure agent and red-mud coal ash cementitious material |
| CN108585005A (en) * | 2018-06-06 | 2018-09-28 | 山西森泽能源科技集团有限公司 | A kind of dealkalization method of Bayer process red mud |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111807736A (en) * | 2020-07-13 | 2020-10-23 | 湖南金隆再生金属有限公司 | Desulfurization calcined gypsum processing technology |
| CN112675692A (en) * | 2020-12-29 | 2021-04-20 | 西安交通大学 | Red mud harmless treatment system based on circulating fluidized bed boiler and working method thereof |
| CN112675692B (en) * | 2020-12-29 | 2022-02-22 | 西安交通大学 | Red mud harmless treatment system based on circulating fluidized bed boiler and working method thereof |
| CN115415292A (en) * | 2022-09-29 | 2022-12-02 | 武汉理工大学 | Red mud wet dealkalization method and treatment system |
| CN115415292B (en) * | 2022-09-29 | 2024-04-09 | 武汉理工大学 | Wet dealkalization method and treatment system for red mud |
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| US11535572B2 (en) | 2022-12-27 |
| US20200299207A1 (en) | 2020-09-24 |
| CN109985496B (en) | 2021-07-23 |
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